/**
 * http://usejsdoc.org/
 */
function person(){
	this.think = function (callback){
		setTimeout(function(){console.log('thinking.........');callback();},5000);
	};
	
	this.anwser = function(){
		console.log('I am anwsering other question!');
	};
}

var person = new person();
person.think(function(){
	
	console.log('thinking 5 second, get right anwser!');
});
person.anwser();